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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">obj_diff</span><span data-if="c" style="display:none;">obj_diff</span><span data-if="cpp" style="display:none;">ObjDiff</span><span data-if="dotnet" style="display:none;">ObjDiff</span><span data-if="python" style="display:none;">obj_diff</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">obj_diff</span><span data-if="c" style="display:none;">obj_diff</span><span data-if="cpp" style="display:none;">ObjDiff</span><span data-if="dotnet" style="display:none;">ObjDiff</span><span data-if="python" style="display:none;">obj_diff</span></code> — Calculate the difference of two object tuples.</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>obj_diff</b>(<a href="#Objects"><i>Objects</i></a>, <a href="#ObjectsSub"><i>ObjectsSub</i></a> : <a href="#ObjectsDiff"><i>ObjectsDiff</i></a> :  : )</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>obj_diff</b>(const Hobject <a href="#Objects"><i>Objects</i></a>, const Hobject <a href="#ObjectsSub"><i>ObjectsSub</i></a>, Hobject* <a href="#ObjectsDiff"><i>ObjectsDiff</i></a>)</code></p>
<p>
<code>Herror <b>T_obj_diff</b>(const Hobject <a href="#Objects"><i>Objects</i></a>, const Hobject <a href="#ObjectsSub"><i>ObjectsSub</i></a>, Hobject* <a href="#ObjectsDiff"><i>ObjectsDiff</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>ObjDiff</b>(const HObject&amp; <a href="#Objects"><i>Objects</i></a>, const HObject&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>, HObject* <a href="#ObjectsDiff"><i>ObjectsDiff</i></a>)</code></p>
<p>
<code><a href="HObject.html">HObject</a> <a href="HObject.html">HObject</a>::<b>ObjDiff</b>(const HObject&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>ObjDiff</b>(const HImage&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HRegion.html">HRegion</a> <a href="HRegion.html">HRegion</a>::<b>ObjDiff</b>(const HRegion&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HXLD.html">HXLD</a> <a href="HXLD.html">HXLD</a>::<b>ObjDiff</b>(const HXLD&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HXLDCont.html">HXLDCont</a> <a href="HXLDCont.html">HXLDCont</a>::<b>ObjDiff</b>(const HXLDCont&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HXLDPoly.html">HXLDPoly</a> <a href="HXLDPoly.html">HXLDPoly</a>::<b>ObjDiff</b>(const HXLDPoly&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HXLDPara.html">HXLDPara</a> <a href="HXLDPara.html">HXLDPara</a>::<b>ObjDiff</b>(const HXLDPara&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HXLDModPara.html">HXLDModPara</a> <a href="HXLDModPara.html">HXLDModPara</a>::<b>ObjDiff</b>(const HXLDModPara&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
<p>
<code><a href="HXLDExtPara.html">HXLDExtPara</a> <a href="HXLDExtPara.html">HXLDExtPara</a>::<b>ObjDiff</b>(const HXLDExtPara&amp; <a href="#ObjectsSub"><i>ObjectsSub</i></a>) const</code></p>
</div>
<div data-if="com" style="display:none;"></div>
<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>ObjDiff</b>(<a href="HObject.html">HObject</a> <a href="#Objects"><i>objects</i></a>, <a href="HObject.html">HObject</a> <a href="#ObjectsSub"><i>objectsSub</i></a>, out <a href="HObject.html">HObject</a> <a href="#ObjectsDiff"><i>objectsDiff</i></a>)</code></p>
<p>
<code><a href="HObject.html">HObject</a> <a href="HObject.html">HObject</a>.<b>ObjDiff</b>(<a href="HObject.html">HObject</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>ObjDiff</b>(<a href="HImage.html">HImage</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HRegion.html">HRegion</a> <a href="HRegion.html">HRegion</a>.<b>ObjDiff</b>(<a href="HRegion.html">HRegion</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HXLD.html">HXLD</a> <a href="HXLD.html">HXLD</a>.<b>ObjDiff</b>(<a href="HXLD.html">HXLD</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HXLDCont.html">HXLDCont</a> <a href="HXLDCont.html">HXLDCont</a>.<b>ObjDiff</b>(<a href="HXLDCont.html">HXLDCont</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HXLDPoly.html">HXLDPoly</a> <a href="HXLDPoly.html">HXLDPoly</a>.<b>ObjDiff</b>(<a href="HXLDPoly.html">HXLDPoly</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HXLDPara.html">HXLDPara</a> <a href="HXLDPara.html">HXLDPara</a>.<b>ObjDiff</b>(<a href="HXLDPara.html">HXLDPara</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HXLDModPara.html">HXLDModPara</a> <a href="HXLDModPara.html">HXLDModPara</a>.<b>ObjDiff</b>(<a href="HXLDModPara.html">HXLDModPara</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
<p>
<code><a href="HXLDExtPara.html">HXLDExtPara</a> <a href="HXLDExtPara.html">HXLDExtPara</a>.<b>ObjDiff</b>(<a href="HXLDExtPara.html">HXLDExtPara</a> <a href="#ObjectsSub"><i>objectsSub</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>obj_diff</b>(<a href="#Objects"><i>objects</i></a>: HObject, <a href="#ObjectsSub"><i>objects_sub</i></a>: HObject) -&gt; HObject</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">obj_diff</span><span data-if="c" style="display:none">obj_diff</span><span data-if="cpp" style="display:none">ObjDiff</span><span data-if="com" style="display:none">ObjDiff</span><span data-if="dotnet" style="display:none">ObjDiff</span><span data-if="python" style="display:none">obj_diff</span></code> calculates the set-theoretic difference of
two object tuples:
<span class="pre">
   (objects in Objects) - (objects in ObjectsSub)
</span>
The resulting object tuple <a href="#ObjectsDiff"><i><code><span data-if="hdevelop" style="display:inline">ObjectsDiff</span><span data-if="c" style="display:none">ObjectsDiff</span><span data-if="cpp" style="display:none">ObjectsDiff</span><span data-if="com" style="display:none">ObjectsDiff</span><span data-if="dotnet" style="display:none">objectsDiff</span><span data-if="python" style="display:none">objects_diff</span></code></i></a>
is defined as the input tuple
<a href="#Objects"><i><code><span data-if="hdevelop" style="display:inline">Objects</span><span data-if="c" style="display:none">Objects</span><span data-if="cpp" style="display:none">Objects</span><span data-if="com" style="display:none">Objects</span><span data-if="dotnet" style="display:none">objects</span><span data-if="python" style="display:none">objects</span></code></i></a> with all objects from <a href="#ObjectsSub"><i><code><span data-if="hdevelop" style="display:inline">ObjectsSub</span><span data-if="c" style="display:none">ObjectsSub</span><span data-if="cpp" style="display:none">ObjectsSub</span><span data-if="com" style="display:none">ObjectsSub</span><span data-if="dotnet" style="display:none">objectsSub</span><span data-if="python" style="display:none">objects_sub</span></code></i></a> removed.
</p>
<p>For a short description of the iconic objects that are available in HALCON
see the introduction of chapter <a href="toc_object.html">Object</a>.</p>
<h2 id="sec_attention">注意</h2>
<p>Image matrices and XLDs are not compared regarding their contents. Thus,
two images or XLDs, respectively, are “equal” if they are located
at the same place in the storage.
By contrast, regions that are not located at the same place in the
storage are compared regarding their actual contents.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
    
      <li>Supports objects on compute devices.</li>
    
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  <li>未经并行化处理。</li>
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="Objects" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Objects</span><span data-if="c" style="display:none">Objects</span><span data-if="cpp" style="display:none">Objects</span><span data-if="com" style="display:none">Objects</span><span data-if="dotnet" style="display:none">objects</span><span data-if="python" style="display:none">objects</span></code></b> (input_object)  </span><span>object(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HObject.html">HObject</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HObject.html">HObject</a></span><span data-if="c" style="display:none">Hobject</span></span>
</div>
<p class="pardesc">Object tuple 1.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ObjectsSub" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ObjectsSub</span><span data-if="c" style="display:none">ObjectsSub</span><span data-if="cpp" style="display:none">ObjectsSub</span><span data-if="com" style="display:none">ObjectsSub</span><span data-if="dotnet" style="display:none">objectsSub</span><span data-if="python" style="display:none">objects_sub</span></code></b> (input_object)  </span><span>object(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HObject.html">HObject</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HObject.html">HObject</a></span><span data-if="c" style="display:none">Hobject</span></span>
</div>
<p class="pardesc">Object tuple 2.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ObjectsDiff" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ObjectsDiff</span><span data-if="c" style="display:none">ObjectsDiff</span><span data-if="cpp" style="display:none">ObjectsDiff</span><span data-if="com" style="display:none">ObjectsDiff</span><span data-if="dotnet" style="display:none">objectsDiff</span><span data-if="python" style="display:none">objects_diff</span></code></b> (output_object)  </span><span>object(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HObject.html">HObject</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HObject.html">HObject</a></span><span data-if="c" style="display:none">Hobject *</span></span>
</div>
<p class="pardesc">Objects from <a href="#Objects"><i><code><span data-if="hdevelop" style="display:inline">Objects</span><span data-if="c" style="display:none">Objects</span><span data-if="cpp" style="display:none">Objects</span><span data-if="com" style="display:none">Objects</span><span data-if="dotnet" style="display:none">objects</span><span data-if="python" style="display:none">objects</span></code></i></a> that are not part of
<a href="#ObjectsSub"><i><code><span data-if="hdevelop" style="display:inline">ObjectsSub</span><span data-if="c" style="display:none">ObjectsSub</span><span data-if="cpp" style="display:none">ObjectsSub</span><span data-if="com" style="display:none">ObjectsSub</span><span data-if="dotnet" style="display:none">objectsSub</span><span data-if="python" style="display:none">objects_sub</span></code></i></a>.</p>
</div>
<h2 id="sec_result">结果</h2>
<p><code><span data-if="hdevelop" style="display:inline">obj_diff</span><span data-if="c" style="display:none">obj_diff</span><span data-if="cpp" style="display:none">ObjDiff</span><span data-if="com" style="display:none">ObjDiff</span><span data-if="dotnet" style="display:none">ObjDiff</span><span data-if="python" style="display:none">obj_diff</span></code> always returns <TT>2</TT> (
      <TT>H_MSG_TRUE</TT>)
    .</p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="test_equal_obj.html"><span data-if="hdevelop" style="display:inline">test_equal_obj</span><span data-if="c" style="display:none">test_equal_obj</span><span data-if="cpp" style="display:none">TestEqualObj</span><span data-if="com" style="display:none">TestEqualObj</span><span data-if="dotnet" style="display:none">TestEqualObj</span><span data-if="python" style="display:none">test_equal_obj</span></a></code>, 
<code><a href="count_obj.html"><span data-if="hdevelop" style="display:inline">count_obj</span><span data-if="c" style="display:none">count_obj</span><span data-if="cpp" style="display:none">CountObj</span><span data-if="com" style="display:none">CountObj</span><span data-if="dotnet" style="display:none">CountObj</span><span data-if="python" style="display:none">count_obj</span></a></code>, 
<code><a href="copy_obj.html"><span data-if="hdevelop" style="display:inline">copy_obj</span><span data-if="c" style="display:none">copy_obj</span><span data-if="cpp" style="display:none">CopyObj</span><span data-if="com" style="display:none">CopyObj</span><span data-if="dotnet" style="display:none">CopyObj</span><span data-if="python" style="display:none">copy_obj</span></a></code>, 
<code><a href="select_obj.html"><span data-if="hdevelop" style="display:inline">select_obj</span><span data-if="c" style="display:none">select_obj</span><span data-if="cpp" style="display:none">SelectObj</span><span data-if="com" style="display:none">SelectObj</span><span data-if="dotnet" style="display:none">SelectObj</span><span data-if="python" style="display:none">select_obj</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
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